Glossary  >  400-Series Cable

400-Series Cable


The 400-Series Cable is a flexible, low-loss, high-performance coaxial cable commonly recognized as the standard antenna cable. It is used in:

  • Wireless communication system assemblies
  • Applications requiring some flexibility
  • Short antenna feeder runs

Known for its 50 Ohm impedance, the 400-Series Cable offers low loss levels, effective RF (Radio Frequency) shielding, and one of the smallest bend radii among cables of similar size.

It provides excellent performance for Very High Frequency (VHF) and Ultra High Frequency (UHF) applications, making it particularly suitable in environments prone to electromagnetic interference.

Among flexible cables, it boasts one of the lowest attenuation levels, comparable to semi-rigid hard-line cables:

Cable Type Attenuation at 2.4 GHz Attenuation at 5.8 GHz
240 Series 12.651 dB/100 feet
41.509 dB/100 meters
20.35 dB/100 feet
66.769 dB/100 meters
400 Series 6.614 dB/100 feet
21.703 dB/100 meters
10.821 dB/100 feet
35.504 dB/100 meters
600 Series 4.325 dB/100 feet
14.19 dB/100 meters
7.261 dB/100 feet
23.825 dB/100 meters

Example of 400-series cable in a sentence:

"400-series cables are perfect for scenarios requiring easily routed, low-loss RF cable, such as WiFi installations in homes."

Related Terms for 400-Series Cable: